Women sports pioneers – A former point guard for California State Polytechnic University-Pomona, Violet Palmer became the first female NBA referee in 1997.
Women sports pioneers – Former WNBA player Becky Hammon accepted a position as an assistant coach with the San Antonio Spurs in 2014, making her the first full-time, paid female assistant on an NBA coaching staff.
Women sports pioneers – Sprinter Wilma Rudolph was the first U.S. woman to win three gold medals in one Olympics, during the 1960 Games in Rome.
Women sports pioneers – Eri Yoshida, then 17, became the first woman to play professional baseball with men in Japan when she pitched in an independent league game in 2009.
Women sports pioneers – American golfer Babe Didrikson Zaharias was the first woman to play in a PGA Tour event during 1938's Los Angeles Open.
Women sports pioneers – In 1997, baseball player Ila Borders became the first woman to pitch in a regular-season professional game, for the St. Paul Saints.
Women sports pioneers – Canadian Manon Rheaume became the first woman to play in a regular-season professional hockey game in 1992 when she suited up for for the Tampa Bay Lightning.
Women sports pioneers – Before Danica Patrick, there was Janet Guthrie. Guthrie became the first woman to compete in the Indianapolis 500 and Daytona 500 back in 1977.
Women sports pioneers – Toni Stone played shortstop for the Indianapolis Clowns of the National Negro Leagues. Pictured here circa 1950, Stone is believed to be the first women to suit up regularly for a professional baseball team.
Women sports pioneers – Julie Krone became the first female jockey to win a Triple Crown race when she rode Colonial Affair to victory at the Belmont Stakes in 1993.
Women sports pioneers – Shannon Eastin became first woman to officiate an NFL regular-season game in 2012.
Women sports pioneers – Former Secretary of State Condoleezza Rice was one of the first two women admitted as a members to the Augusta National Golf Club in 2012.
Women sports pioneers – Darla Moore, a South Carolina business executive, was granted membership to Augusta National Golf Club along with Rice.
Women sports pioneers – Cammi Granato (pictured) and Angela James were the first women nominated to be inducted into the Hockey Hall of Fame in 2010.
Women sports pioneers – Canada's Angela James, left, checks Germany's Elvira Saager during the Women's World Hockey Championships in Ottawa in 2010.
Women sports pioneers – Negro League Newark Eagles baseball team owner Effa Manley poses with bats in the dugout in Ruppert Stadium in Newark, New Jersey, in 1948. Manley was the first woman elected and inducted to the Baseball Hall of Fame.
Women sports pioneers – Basketball standout Ann Meyers Drysdale was the first woman to earn a full athletic scholarship from University of California-Los Angeles. She was offered a free-agent contract with the NBA's Indiana Pacers in 1979 -- unprecedented for a female player.